Start-Up Methods - Homa H511 Originalbetriebsanleitung

3-phase motors
Pumps with 400 V/3-phase motors are equipped differently:
3-phase motors
H502D, 10m connecting cable, switchgear with power
H506D, plug
H508D
H511D 20m connecting cable, switchgear with power
plug
When using other switching devices, pay attention to
the rated current of the motor when designing the circuit
breaker for the motor (see nameplate).

5.9. Start-up methods

Start-up with plug
Plug the connector into the socket provided and press the
on/off switch on the switching device.
5.9.1. After turning on
The nominal current is briefly exceeded on start-up.
After completion of this operation, the operating cur-
rent should not exceed the nominal current. If the motor
does not start immediately after switching on, it must be
shut down immediately. The switch breaks according to
the technical data must be adhered to before turning on
again. If there is a new fault, the machine must again be
shut down immediately. The machine may be powered-on
again only after troubleshooting.
The following items should be checked:
• Operating voltage (permissible deviation +/- 5% of
the rated voltage)
• Frequency (permissible deviation -2% of the rated
frequency)
• Current consumption (permissible deviation between
phases max. 5%)
• Voltage difference between the individual phases
(max. 1%)
• Switching frequency and pauses (see Technical Data)
• Air entry at the intake - if necessary, a baffle plate
must be attached
• Minimum water coverage, level control, dry run pro-
tection
• Smooth running
• Check for leaks: if necessary, take the necessary
steps according to the chapter „ Maintenance"
EngliSH | 31